'\" te
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.TH BIOFINI 9F "Nov 20, 1996"
.SH NAME
biofini \- uninitialize a buffer structure
.SH SYNOPSIS
.nf
#include <sys/ddi.h>
#include <sys/sunddi.h>

\fBvoid\fR \fBbiofini\fR(\fBstruct buf *\fR\fIbp\fR);
.fi

.SH INTERFACE LEVEL
illumos DDI specific (illumos DDI).
.SH PARAMETERS
.ne 2
.na
\fB\fIbp\fR\fR
.ad
.RS 6n
Pointer to the buffer header structure.
.RE

.SH DESCRIPTION
The \fBbiofini()\fR function uninitializes a \fBbuf\fR(9S) structure. If a
buffer structure has been allocated and initialized using \fBkmem_alloc\fR(9F)
and \fBbioinit\fR(9F) it needs to be uninitialized using \fBbiofini()\fR before
calling \fBkmem_free\fR(9F). It is not necessary to call \fBbiofini()\fR before
freeing a buffer structure using \fBfreerbuf\fR(9F) because \fBfreerbuf()\fR
will call \fBbiofini()\fR directly.
.SH CONTEXT
The \fBbiofini()\fR function can be called from any context.
.SH EXAMPLES
\fBExample 1 \fRUsing \fBbiofini()\fR
.sp
.in +2
.nf
struct buf *bp = kmem_alloc(biosize(), KM_SLEEP);
bioinit(bp);
/* use buffer */
biofini(bp);
kmem_free(bp, biosize());
.fi
.in -2

.SH SEE ALSO
.BR bioinit (9F),
.BR bioreset (9F),
.BR biosize (9F),
.BR freerbuf (9F),
.BR kmem_alloc (9F),
.BR kmem_free (9F),
.BR buf (9S)
.sp
.LP
\fIWriting Device Drivers\fR
